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Analog Devices Inc. ADA4077-1ARZ
- Part No.:
- ADA4077-1ARZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADA4077-1ARZ.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:738
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Product details
Overview
ADA4077-1ARZ from Analog Devices is a single-channel, high-precision operational amplifier optimized for low-offset, low-drift, low-noise signal conditioning in industrial and instrumentation systems. It delivers 25 µV max offset voltage (B grade), 0.25 µV/°C max drift, 6.9 nV/√Hz voltage noise density at 1 kHz, 3.9 MHz gain bandwidth, and operates from ±2.5 V to ±15 V supplies. It is used in RTD front-end amplifiers, optical network control circuits, and precision sensor interfaces.
For engineers reviewing the ADA4077-1ARZ datasheet, ADA4077-1ARZ pinout, ADA4077-1ARZ application, or ADA4077-1ARZ equivalent, this page provides verified specifications, SOIC-8 package details, real-world design meaning of key parameters, and validated alternative options for precision analog signal chains requiring stability over −40°C to +125°C.
Technical Context
The ADA4077-1ARZ implements a sixth-generation precision op amp architecture evolved from the OP07 family, using proprietary linear process technology to achieve ultra-low input bias current (1 nA max) with minimal temperature sensitivity up to +125°C. Its input stage avoids JFET limitations while maintaining rail-to-rail common-mode range (−13.8 V to +13 V at ±15 V supply) and immunity to phase reversal even beyond supply rails.
It features unity-gain stability with >55° phase margin, supports capacitive loads >1000 pF without external compensation, and achieves 120 dB minimum CMRR, PSRR, and open-loop gain - enabling high-accuracy closed-loop configurations in noisy, wide-temperature industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | 25 µV maximum (B grade, 25°C); ensures ≤65 µV error across −40°C to +125°C - critical for sub-0.1% accuracy in RTD or strain gauge bridges. |
| Offset Drift | 0.25 µV/°C maximum (B grade); contributes <0.03 mV total drift over 100°C span - enables stable calibration intervals in process control. |
| Voltage Noise Density | 6.9 nV/√Hz at 1 kHz; combined with 3.9 MHz GBW, supports low-noise amplification of µV-level sensor signals without excessive filtering. |
| Supply Current | 400 µA typical per amplifier; enables battery-powered portable instrumentation with multi-hour runtime and minimal self-heating. |
| CMRR / PSRR | ≥120 dB minimum; rejects power supply ripple and common-mode interference in unshielded industrial wiring or shared PCB rails. |
| Output Swing | ±3.2 V min into 1 mA load at ±5 V supply; delivers full dynamic range for 16-bit ADC drivers without headroom loss. |
| Operating Temp Range | −40°C to +125°C; qualified for under-hood automotive, factory-floor PLCs, and downhole sensing where thermal cycling exceeds commercial limits. |
Pinout & Package
ADA4077-1ARZ is housed in an 8-lead SOIC (R-8) package, RoHS-compliant, MSL1 rated, with 1.27 mm lead pitch and standard JEDEC outline. Thermal resistance θJA = 158°C/W (PCB mounted).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 8 | NIC | Not internally connected - no routing or grounding required; improves layout flexibility and reduces parasitic coupling. |
| 2 | −IN | Inverting input - connects to feedback network; high impedance (70 GΩ) minimizes loading on precision resistor dividers. |
| 3 | +IN | Noninverting input - accepts low-level sensor signals; common-mode range extends to within 1.2 V of rails at ±5 V supply. |
| 4 | V− | Negative supply pin - must be bypassed with ≥0.1 µF ceramic capacitor placed ≤2 mm from pin to suppress high-frequency PSRR degradation. |
| 6 | OUT | Amplifier output - drives loads up to ±10 mA; stable with >1000 pF capacitance, eliminating need for isolation resistors in ADC buffer applications. |
| 7 | V+ | Positive supply pin - shares same bypassing requirement as V−; dual-supply symmetry enables true bipolar signal handling. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal | Immune to polarity inversion when inputs exceed supply rails - prevents system lockup in overvoltage transients (e.g., ESD or sensor fault conditions). |
| MSL1 rating | Rated for 260°C reflow per IPC/JEDEC J-STD-020 - supports high-reliability automated assembly without moisture-induced popcorning. |
| Long-term drift | 0.5 µV typical over 10,000 hours - less than 2% of max spec; reduces recalibration frequency in metrology-grade equipment. |
| Temperature hysteresis | 1 µV typical after full −40°C ↔ +125°C ↔ 25°C cycles - ensures repeatable zero-point stability in cyclic thermal environments. |
| Low input bias current | 1 nA maximum at 25°C, stable vs. temperature - avoids significant voltage drop across high-impedance sources (e.g., pH electrodes or piezoelectric sensors). |
Applications
| RTD Temperature Sensing | Optical Power Monitoring |
|---|---|
|
Use Scenario: Amplifying differential voltage from a 3-wire Pt100 RTD bridge excited by a 2.5 V reference in industrial process controllers. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with <1 µV/°C effective drift contribution. Use Value: Enables ±0.5°C accuracy after calibration while dissipating <0.1 mW in the RTD - eliminating self-heating errors. |
Use Scenario: Converting photodiode current to voltage in fiber-optic transceiver modules for 10G/25G optical networks. IC Role / Device Role / Timing Role: Low-noise transimpedance amplifier with 6.9 nV/√Hz input noise and 3.9 MHz bandwidth. Use Value: Supports high-SNR detection of µA-level photocurrents without degrading bit-error rate in high-speed data links. |
| Precision Data Acquisition | Process Control Signal Conditioning |
|
Use Scenario: Buffering and level-shifting sensor outputs prior to 24-bit sigma-delta ADCs in portable multimeters and calibrators. IC Role / Device Role / Timing Role: Rail-compatible input/output driver with 120 dB CMRR to reject ground loop noise in mixed-signal PCBs. Use Value: Preserves ENOB >21 bits by limiting offset drift to <0.03 mV over operating temperature range. |
Use Scenario: Isolating and amplifying 4–20 mA loop signals in PLC analog input modules exposed to factory EMI. IC Role / Device Role / Timing Role: High-PSRR (≥120 dB), low-drift amplifier rejecting supply ripple and magnetic field interference. Use Value: Maintains 0.05% full-scale accuracy despite ±10% AC line variation and ambient temperature swings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP1177ARZ | Higher offset drift (0.6 µV/°C max), lower GBW (1.3 MHz), higher supply current (1.2 mA). | Better suited for DC-coupled, ultra-low-power applications where bandwidth is secondary to quiescent current. | Select OP1177ARZ only if supply current <1 mA is mandatory and bandwidth ≤1.3 MHz suffices. |
| AD8677ARZ | Lower noise (4.8 nV/√Hz), same offset (25 µV B grade), but narrower temp range (−40°C to +105°C) and no MSL1 rating. | Preferred for lab-grade instruments where ultimate noise performance outweighs extended temperature or reflow robustness. | Choose AD8677ARZ when noise dominates design budget and operation above +105°C is not required. |
Compared with OP1177ARZ and AD8677ARZ, ADA4077-1ARZ uniquely balances ultra-low drift (0.25 µV/°C), MSL1 reflow capability, and full −40°C to +125°C qualification - making it optimal for ruggedized industrial signal chains where long-term calibration stability and manufacturing reliability are co-priorities.
Availability
ADA4077-1ARZ is available at Aetrix Electronics and suitable for RTD temperature sensing, optical power monitoring, precision data acquisition, and process control signal conditioning requiring stable component supply across extended temperature ranges and high-reliability manufacturing.
Supply support for ADA4077-1ARZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Wilmington, MA.
The ADA4077 family represents Analog Devices' sixth-generation evolution of the OP07 precision op amp lineage, engineered specifically for industrial, instrumentation, and test equipment demanding extreme DC accuracy, thermal stability, and robust manufacturability.
FAQ
What is the maximum operating temperature range for the ADA4077-1ARZ?
The ADA4077-1ARZ is fully specified and qualified over −40°C to +125°C. This extended industrial temperature range is confirmed in the Absolute Maximum Ratings table and Electrical Characteristics sections of the Rev. F datasheet, and applies to all electrical parameters including offset voltage, drift, and CMRR. The device maintains MSL1 reflow rating across this full range.
Does the ADA4077-1ARZ require external compensation for capacitive loads?
No, the ADA4077-1ARZ is unity-gain stable and designed to drive capacitive loads exceeding 1000 pF without external compensation. This is explicitly stated in the General Description and verified in Figure 42 (Large Signal Transient Response) and Figure 52 (Small Signal Overshoot vs. Load Capacitance) of the Rev. F datasheet.
What is the typical supply current for the ADA4077-1ARZ at ±5 V?
The typical supply current for the ADA4077-1ARZ is 400 µA per amplifier at ±5 V and 25°C, as listed in Table 2 (Electrical Characteristics, ±5 V). The maximum is 650 µA across −40°C to +125°C, ensuring predictable power budgeting in battery-operated or thermally constrained designs.
Is the ADA4077-1ARZ pin-compatible with other op amps like the OP07 or OP177?
No, the ADA4077-1ARZ is not pin-compatible with OP07 or OP177. It uses an 8-lead SOIC package with pins 1, 5, and 8 designated as NIC (not internally connected), whereas OP07/OP177 use all eight pins functionally. Direct replacement would require PCB layout revision and validation of signal routing to the correct +IN, −IN, V+, V−, and OUT pins.
What does the 'B grade' designation mean for ADA4077-1ARZ?
The 'B grade' in ADA4077-1ARZ indicates the tighter offset voltage and drift specifications: 25 µV max offset at 25°C and 0.25 µV/°C max drift over −40°C to +125°C. This grade is confirmed in Tables 2 and 3 of the Rev. F datasheet and distinguishes it from the 'A grade' (50 µV / 0.55 µV/°C) offered in the same SOIC package.
ADA4077-1ARZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 1.2V/µs
- Gain Bandwidth Product:
- 3.6 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 400 pA
- Voltage - Input Offset:
- 15 µV
- Current - Supply:
- 400µA
- Current - Output / Channel:
- 22 mA
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ADA4077-1ARZ FAQ
1.How can I place an order for ADA4077-1ARZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4077-1ARZ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADA4077-1ARZ reliable?
The price and inventory of ADA4077-1ARZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4077-1ARZ is usually 5 days.
3.What payment methods are accepted for ADA4077-1ARZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4077-1ARZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4077-1ARZ?
ADA4077-1ARZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4077-1ARZ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADA4077-1ARZ?
For technical support, including ADA4077-1ARZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4077-1ARZ requirements.
6.How does Aetrix verify that ADA4077-1ARZ is sourced from the original manufacturer or authorized distributors?
All ADA4077-1ARZ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADA4077-1ARZ meets industry standards.
7.What is the process for return or replacement of ADA4077-1ARZ?
All ADA4077-1ARZ units undergo pre-shipment inspection (PSI). If there is an issue with ADA4077-1ARZ, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADA4077-1ARZ part is unused and in its original packaging.
Return procedure for ADA4077-1ARZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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